White carbon black
Silica black is a general term for white powdered X-ray amorphous silicic acid and silicate products, mainly referring to precipitated silica, fumed silica and ultra-fine silica gel, and also includes powdered synthetic aluminum silicate and calcium silicate. Soluble in caustic soda and hydrofluoric acid, insoluble in water, solvents and acids (except hydrofluoric acid). High temperature resistance, non-flammable, tasteless, odorless, with good electrical insulation.
|
Product model |
ordinary |
|
Silica content |
≥ 97 |
|
pH value |
5.5-8.0 |
|
Oil absorption value ≥ |
2.0-3.5 |
|
Heating loss (105 ℃) |
4.0-8.0 ℃ |
|
Loss on ignition (1000 ℃) |
≤ 7.0 |
|
water soluble matter |
≤ 2.5 |
|
total iron content |
≤ 0.025 |
|
Sieve residue (45nm) |
≤ 0.5 |
|
300% elongation stress |
≥ 5.5 |
|
tensile strength |
≤ 19.0 |
|
Elongation at break |
≥ 550 |
|
mesh number |
325 mesh |
Packing : 20kg
White carbon black
Silica black is a general term for white powdered X-ray amorphous silicic acid and silicate products, mainly referring to precipitated silica, fumed silica and ultra-fine silica gel, and also includes powdered synthetic aluminum silicate and calcium silicate. Soluble in caustic soda and hydrofluoric acid, insoluble in water, solvents and acids (except hydrofluoric acid). High temperature resistance, non-flammable, tasteless, odorless, with good electrical insulation.
|
Product model |
ordinary |
|
Silica content |
≥ 97 |
|
pH value |
5.5-8.0 |
|
Oil absorption value ≥ |
2.0-3.5 |
|
Heating loss (105 ℃) |
4.0-8.0 ℃ |
|
Loss on ignition (1000 ℃) |
≤ 7.0 |
|
water soluble matter |
≤ 2.5 |
|
total iron content |
≤ 0.025 |
|
Sieve residue (45nm) |
≤ 0.5 |
|
300% elongation stress |
≥ 5.5 |
|
tensile strength |
≤ 19.0 |
|
Elongation at break |
≥ 550 |
|
mesh number |
325 mesh |
Packing : 20kg
